I live in a semi-forested small town with about 4-5 houses. I think I'd find Mankey, a Snorlax, some Machop, some Geodude, and a small colony of Turtwig around the hill near my house. And some Diglett, a few Dugtrio, lots of Sandshrew, some Drillbur, a few Geodude, and maybe a small colony of Larvitar at the gravel pit near our house. And lots of Pidgey, Spearow, Caterpie, Wurmple, maybe a few Heracross, and some other Pokemon like Weedle.etc in the forest surrounding my house. A Ghastly, some Magnemite, LOTS of Rattata, and some Raticate, some Pikachu, Pichu, and a Raichu in my basement. Yes, we have a little squeaky problem in our house.
Lots of the Poliwag evolutionary line in the small Pond at our neighbors house.
Some Squirtle, Magikarp, a few Lapras, and a bunch of other water Pokémon near the Lake.
For pets, they'd be the same pets I have IRL, but as Pokémon.
Lenny, my Linoone.
Jethro, the family Stoutland.
Bosco, the Growlithe puppy.
Boo, the hyper Vaporeon.
Moose\Mooch, the mooching Meowth.
Orbit, the itty bitty Eevee.
Speck, the angry Liepard that somehow turns happy when outside.
I'd be adventuring all the time with Lenny, having fun and discovering new places and Pokémon.